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twogoodears wrote:

I re-read an half-page chapter in French from Jean Hiraga's "Les Hautparleur" essay, concerning time-alignement and phase... in this quite misconsidered and often unconcerned parameter, I more and more carefully weighted Hiraga's words, where he says that in horns time-alignement you, I simplify to be better understood, you must go "fractal" - i.e. 1/2 inch plus a salt grain;-) because it's not simply a matter of phisically aligning the diaphragms of, say, tweeter, mid and woofer, but "finding" the "fractal" point where you hear the best, most natural sound in yr. VERY system.

I did not read this article (I can’t not read French) but if it was what you described then I disagree with what  Jean Hiraga stated. There is nothing in proper aligning none-physically or mysterious that would require any “finding the fractal point by ears”. You might find alignment by ears or you ming find alignment by measurement (many techniques are available) but I did not see any single instance where the measurable and the auditable time alignment crated any contradiction (of cause if one knows what to listen for). Jean Hiraga suppose to be good a engineer and it should not be foe him an issues to measure the time arrival. Why he feels that anything else should be invented and why he feels that “most natural sound” should be introduced to the very simple subject of time arrival is beyond me. Particularly if the cases where the channels are aligned do result “hear the best and the most natural sound” in 100% of all cases.  Perhaps Mr. Hiraga is trying to listen for wrong things?

twogoodears wrote:

I only recently began to move drivers and horns and, while only some weeks ago, I was positioning speakers/ways in an aesthetically/functional (due to weight and bulkiness) way - like 98 percent of people worldwide using these speakers, now I almost only use ears... now I feel as I did "before" like audio shops owners back in '70s when they applied their coolness with those silly "waves" on equalizers on the shelves to impress young audio lovers!!!

Welcome to the state of the lost virginity. In fact the expresses of the 98 percent of people worldwide are irrelevant as if you know how time-misaligned sound horns then you would automatically discard whatever the 98% of morons out there do or say. BTW, I do not think that the alignment “only by ear” is right way to do the thing. You need to really know what you do and have a LOT of experience to play with alignment in order to do so. Still, you will get much better result with simple measurement, confirming the correctness of alignment by ears.

twogoodears wrote:

The actual "best sound" from my system appears wrong on the paper...

I have difficulty to visualize it. Care to post a picture?

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